高空压接导线应有防（）措施。
A.松线
B.滑落
C.跑线
D.坠落
参考答案：C
.
The teaching building is _________ by many trees, some ______ over 30 metres.
A．surrounded, measuring
B．surrounded, measured
C．surrounding, measured
D．surrounded, measure
因脏腑功能低下而致痰饮为患的症候属（）。
A.虚中夹实
B.虚实并重
C.因虚致实
D.实中夹虚
E.真虚假实
